ONIGENC_IS_CODE_UPPER  395 ext/mbstring/oniguruma/regint.h    : (ONIGENC_IS_CODE_UPPER(enc,code) ? (code) - 'A' + 10 : (code) - 'a' + 10))
ONIGENC_IS_CODE_UPPER 2518 ext/mbstring/oniguruma/regparse.c         ONIGENC_IS_CODE_UPPER(enc, first_code))
ONIGENC_IS_CODE_UPPER 2599 ext/mbstring/oniguruma/regparse.c         ONIGENC_IS_CODE_UPPER(enc, first_code))